| Full text | |
| Author(s): |
Verissimo, Nathalia C.
[1]
;
Cremasco, Alessandra
[1, 2]
;
Rodrigues, Christiane A.
[3]
;
Bertazzoli, Rodnei
[1]
;
Caram, Rubens
[1]
Total Authors: 5
|
| Affiliation: | [1] Univ Estadual Campinas, Sch Mech Engn, Campinas, SP - Brazil
[2] Univ Estadual Campinas, Sch Appl Sci, Limeira, SP - Brazil
[3] Univ Fed Sao Paulo, Dept Exact & Earth Sci, Sao Paulo - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Applied Surface Science; v. 307, p. 372-381, JUL 15 2014. |
| Web of Science Citations: | 9 |
| Abstract | |
New metastable p-type Ti alloys for biomedical applications containing biocompatible alloying elements such as Nb can present remarkable mechanical behavior. Whenever the performance of an implant produced from p-type Ti alloys is considered, it is crucial to take into account their surface properties because they are intimately associated with osseo-integration. The osseo-integration of orthopedic implant devices made from CP-Ti to p-type Ti alloys depends directly on the properties of the oxide layer formed on their surface. The aim of this study was to investigate the formation of self-organized TiO2 nanotubes by an anodization process on CP-Ti and Ti-35Nb and Ti-35Nb-4Sn alloys (wt.%) and analyze the effects of Nb and Sn additions to CP-Ti on the amorphous-anatase and anatase-rutile phase transformations in TiO2 nanotubes using glazing-angle high-temperature X-ray diffraction. The results obtained suggest that the crystallization of Ti 02 formed on CP-Ti occurs at 225 C, whereas the anatase-rutile transition occurs at 400 C. As Nb was added to Ti, the temperatures at which these phase transformations occur increased. When Sn was added to Ti-35Nb alloy, the kinetics of the phase transformations appeared to decrease. 2014 Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 11/23942-6 - Precipitation of alfa and omega phases and recrystallization phenomena in plastically cold deformed Ti-Nb-Sn alloys |
| Grantee: | Rubens Caram Junior |
| Support Opportunities: | Regular Research Grants |